Skylight-lift.



0. HABIGHT SKYLIGHT LIFT.

APPLIGATION FILED JAN. 20, 1910.

Patented May 24-, 1910.

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a 6 E 020 2 4 A I v f. I 0 MM z a I z w w um a swan on. MorwwoammmWASNMN L u UNITED STATES PATENT OFFICE.

WILLIAM C. HABICHT, 0F BALTIMORE, MARYLAND, ASSIG-NOR TO THE KIRK,I-IABICHT COMPANY OF BALTIMORE CITY, OF BALTIMORE, MARYLAND, ACORPORATION OF MARYLAND.

SKYLIGHT-LIFT.

Specification of Letters Patent.

' Patented May 24, 1910.

Application filed January 20, 1910. Serial No. 538,986.

To all whom it may concern:

Be it known that I, WILLIAM C. HABIoH'r, a citizen of the United States,residing at Baltimore, in the State of Maryland, have invented certainnew and useful Improvements in Skylight-Lifts, of which the following isa specification.

This invention relates to gearing for operat'ing hinged sashes, such assky-lights, and more particularly to an improved construction ofbearings and housing for the segment-gear and worm which is usuallyemployed in such mechanism. Experience in the use of worm mechanism foroperating sky-light sashes, has shown that as heretofore constructed thebearings and working parts are unstable and soon become loose, shaky,and inoperative. A further objection to the construction heretofore usedis that the segment-gear and worm have been openly exposed to the dustof the atmosphere and soon accumulate dirt and grit in the bearings andin the meshed gears causing a rapid wear on those parts.

The present invention has for its object to provide a metal housing orcase which shall not only inclose the worm mechanism but will have rigidbearings which are integral with the metal of the said housing, wherebythe parts will have great stability, will operate more easily, and willbe protected from dust.

The invention is illustrated in the accompanying drawing in which,-

Figure 1 is a vertical section of a hinged sash and an elevation of themechanism for operating same, including a side View of the improvedhousing. Fig. 2 is a side View on a larger scale showing the segment andworm and one half of the housing therefor. Fig. 3 is a front view of thehousing. Fig. 4 is a top view of same.

The numeral, 1, designates a sash and, 2, the hinges on which the sashis hung. The mechanism for lifting or opening and closing the hingedsash comprises a segmentgear, 3, which has a shaft, 4, on which itrocks. It is obvious that instead of a rockshaft which passes throughthe segment, the segment may have a trunnion on each side the metal ofsaid trunnions being integral with the segment. The se ment gear, 3,carries an arm, 5, and a rod, 6, connects said arm with a pivot pin, 7,in clip-ears, 8, se-

cured on the sash. The worm shaft or screw, 9, is in engagement with thesegmentgear, 3. By turning the worm the segmentgear will be rocked, andthereby the sash will be either opened or closed. The worm shaft, 9, hasa socket, 10, and a tube or rod, 11, of any required length to suit theheight at which the said mechanism may be fixed or secured, hasits'upper end inserted in the socket, 10, and a pin, 12, may be passedthrough a hole in the socket and rod-end to connect said parts. Thelower end of the tube or rod has a hand-knob, 13, to facilitate itsturning.

The metal housing comprises two halfboxes, 14, 15, both having the samefeatures of constructionone being right and the other left, and eachhaving a flat or plain face, 16, that contact with each other and make atight joint when-the two are brought together.

Two bearings are formed in the flat faces or joinder; one is an upperbearing, 17 and the other is a lower bearing, 18, in which the journals,19, of the worm-shaft fit. The lower bearing, 18, has an extended neckthat projects downward and gives a desirable long bearing for the lowerjournal.

The front of each half-box has a semicircular shape and each half isprovided with a curved flange, 20, and said two curved flanges projecttoward each other but are separated by an open slot, 21, through whichthe arm, 5, on the segment gear swings when the gearing is operated.Each half-box also has on its interior a boss, denoted by broken lines,22, in Figs. 3 and 4; this boss has the side bearing for the shaft ortrunnion, 4; the segment-gear has on each side and around said shaft, 4,a hub or collar, 23, that contacts with the said boss, 22, and keeps thesegment, 3, when it turns, in the center of the housing. The twoshoulders, 24, and, 25, close the open slot, 21, at the top and bottom,and serve as stops to the swinging movement of the arm, 5. The twohalf-boxes fit closely together along the flat faces, 16, and aresecured together by cross screws, 26. Each half-box has a lateralflange, 27, and when the two halfboxes are fastened together by thescrews, 26, the two flanges project in opposite directions, as seen inFigs. 4 and 5, and these constitute the housing back-wall which contactswith the surface, 28, to which the housing is secured by means of screwsthat enter the holes, 29, in the flanges.

Having thus described my invention what I claim and desire to secure byLetters Patent is,

The herein-described housing for worm mechanism that operates the sashof skylights, comprising a metal box having two sides 14, 15, eachprovided with a lateral flange constituting a flat back-wall and each ofsaid sides also having a bearing for a horizontal shaft; the front ofsaid box having two semi-circular flanges which are concentric with saidside bearings and which project toward each other but are separated byan open vertical slot, said box adjacent the flat back-wall having anupper and a lower bearing, 17, 18, in vertical alinement with eachother, in combination with a segment-gear provided with an armprojecting through said vertical slot and said ear hav ing a shaft thatturns in said sidedmarings, and a worm engaging the teeth of thesegment-gear and having journals, 19, which fit in said upper and lowerbearings. 1

In testimony whereof I aflix my signature in presence of two witnesses.

VILLIAM C. \Vitnesses G. FERDINAND VoGT, CHARLES B. MANN, J r.

HABIGHT.

